Granted Patent
Utility
US 4,480,093 · App. 06/497,356
Amines salts of phosphoric acid
Inventors:
Yuval Halpern, Donna M. Mott
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: May 23, 1983
Inventors
Yuval Halpern
Donna M. Mott
Assignee (at issue)
Borg-Warner Chemicals, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.